The SM3280AA has leaked SDKs and ISP sources. Developers write custom firmware to implement encrypted USB drives or even run small embedded scripts on the controller's 8051 core.
A small LDO (Low Dropout Regulator) or DC-DC converter to provide stable 1.8V/3.3V to the NAND, as USB VBUS is 5V. sm3280aa memory bar
This controller is part of Silicon Motion's USB 3.2 Gen 1 lineup, designed for both consumer and industrial applications. The SM3280AA has leaked SDKs and ISP sources
"No Media" or "Unknown Device" in Windows Disk Management. sm3280aa memory bar